code: def testPartialDictGetsAndPeeks(self):
      with ops.Graph().as_default() as g:
          with ops.device("/cpu:0"):
              x = array_ops.placeholder(dtypes.float32)
              f = array_ops.placeholder(dtypes.float32)
              v = array_ops.placeholder(dtypes.float32)
              pi = array_ops.placeholder(dtypes.int64)
              pei = array_ops.placeholder(dtypes.int64)
              gi = array_ops.placeholder(dtypes.int64)
          with ops.device(test.gpu_device_name()):
              # Test barrier with dictionary
              stager = data_flow_ops.MapStagingArea(
                  [dtypes.float32, dtypes.float32, dtypes.float32],
                  names=["x", "v", "f"],
              )
              stage_xf = stager.put(pi, {"x": x, "f": f})
              stage_v = stager.put(pi, {"v": v})
              peek_xf = stager.peek(pei, ["x", "f"])
              peek_v = stager.peek(pei, ["v"])
              key_xf, get_xf = stager.get(gi, ["x", "f"])
              key_v, get_v = stager.get(gi, ["v"])
              pop_key_xf, pop_xf = stager.get(indices=["x", "f"])
              pop_key_v, pop_v = stager.get(pi, ["v"])
              size = stager.size()
              isize = stager.incomplete_size()
  
      g.finalize()
  
      with self.session(graph=g) as sess:
          # 0 complete and incomplete entries
          self.assertEqual(sess.run([size, isize]), [0, 0])
          # Stage key 0, x and f tuple entries
          sess.run(stage_xf, feed_dict={pi: 0, x: 1, f: 2})
          self.assertEqual(sess.run([size, isize]), [0, 1])
          # Stage key 1, x and f tuple entries
          sess.run(stage_xf, feed_dict={pi: 1, x: 1, f: 2})
          self.assertEqual(sess.run([size, isize]), [0, 2])
  
          # Now complete key 0 with tuple entry v
          sess.run(stage_v, feed_dict={pi: 0, v: 1})
          # 1 complete and 1 incomplete entry
          self.assertEqual(sess.run([size, isize]), [1, 1])
  
          # We can now peek at 'x' and 'f' values associated with key 0
          self.assertEqual(
              sess.run(peek_xf, feed_dict={pei: 0}), {"x": 1, "f": 2}
          )
          # Peek at 'v' value associated with key 0
          self.assertEqual(
              sess.run(peek_v, feed_dict={pei: 0}), {"v": 1}
          )
          # 1 complete and 1 incomplete entry
          self.assertEqual(sess.run([size, isize]), [1, 1])
  
          # We can now obtain 'x' and 'f' values associated with key 0
          self.assertEqual(
              sess.run([key_xf, get_xf], feed_dict={gi: 0}),
              [0, {"x": 1, "f": 2}],
          )
          # Still have 1 complete and 1 incomplete entry
          self.assertEqual(sess.run([size, isize]), [1, 1])
  
          # We can no longer get 'x' and 'f' from key 0
          with self.assertRaises(errors.InvalidArgumentError) as cm:
              sess.run([key_xf, get_xf], feed_dict={gi: 0})
  
          exc_str = (
              "Tensor at index '0' for key '0' "
              "has already been removed."
          )
  
          self.assertIn(exc_str, cm.exception.message)
  
          # Obtain 'v' value associated with key 0
          self.assertEqual(
              sess.run([key_v, get_v], feed_dict={gi: 0}), [0, {"v": 1}]
          )
          # 0 complete and 1 incomplete entry
          self.assertEqual(sess.run([size, isize]), [0, 1])
  
          # Now complete key 1 with tuple entry v
          sess.run(stage_v, feed_dict={pi: 1, v: 1})
          # 1 complete and 1 incomplete entry
          self.assertEqual(sess.run([size, isize]), [1, 0])
  
          # Pop without key to obtain 'x' and 'f' values associated with key 1
          self.assertEqual(
              sess.run([pop_key_xf, pop_xf]), [1, {"x": 1, "f": 2}]
          )
          # still 1 complete and 1 incomplete entry
          self.assertEqual(sess.run([size, isize]), [1, 0])
          # We can now obtain 'x' and 'f' values associated with key 1
          self.assertEqual(
              sess.run([pop_key_v, pop_v], feed_dict={pi: 1}),
              [1, {"v": 1}],
          )
          # Nothing is left
          self.assertEqual(sess.run([size, isize]), [0, 0])
  
imports: import queue
  import threading
  import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import data_flow_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 12 for calling the MapStageTest obj's underlying member method code with example usage: obj.testPartialDictGetsAndPeeks() without return types